必修3 Unit4 講學稿

1、Unit4 Astronomy: the science of the stars 講學稿 姓名_ 學號_.詞組練習1. 及時，終于_2. 下蛋_3. 高興,振奮_4. 產(chǎn)生，分娩_5. 輪到某人_6. 爆發(fā)_7. 阻止_8. 既然_9. 以為起點_10.四面八方_11.冷卻_12.掌握的技巧/訣竅_13.在表面_14.密切注視，當心_.單詞練習 寫出下列單詞的變化形式1.系統(tǒng)(n.)_；系統(tǒng)的(adj.) _2.球體，地球(n.)_；全球性的(adj.) _3.猛烈的(adj.)_；暴力(n.) _；猛烈地(adv.)_4.生存(v.)_；生存(n.) _5.物理學家(n.)_；物理(n.)

2、 _；身體的(adj.)_6.生物學(n.)_；生物學家(n.) _7.宗教（n.）_；宗教的（adj.）_8.原子（n.）_；原子的（adj.）_ 用所給單詞的適當形式填空1.The treatment they gave him did him more_ than good，though the doctor insisted it was _. (harm)2.Air _everywhere and its _ makes it possible for us to live on. (exist) 3.He is very _.For example，the lifting devi

3、ce he made is a _ of ropes and pulleys. (system)4.A _tour means traveling all around the _ . (globe)5.The use of _against the attackers led to more _ clashes. (violently)6.She was a _woman who wouldn，t hurt an ant. (gently) 選詞填空Multiplying exist prevent Puzzled puzzling are blocked crashed cheer flo

4、ated to exhaust 1._very fast，rabbits soon became the largest family of all the animals in this woods.2._ at the _ result，he stood there，not knowing what to do.3.There is no need _ yourself clearing upwe，ll do it ourselves.4.Does life _ on other planets?5.Many roads _after today，s heavy snow，so you，d

5、 better not go out.6.It was reported that a plane _ soon after it took off，causing 10 deaths.重點句型1.It was not immediately obvious that water was to be fundamental to the development of life.(P26)水會對于生命的發(fā)展起關(guān)鍵作用，這一點在當時并不明顯。It is/was obvious that.“很明顯”剖析：It is adj.that.在本句中，it 是形式主語，that引導的從句作真正的主語。it做

6、形式主語時，后面的真正主語可以由不定式，動名詞或從句充當。如：It is easier to break down friendship than to build up friendship.破壞友誼比建立友誼要容易。 It was amazing that the child could speak English so well.那個孩子的英語說得如此好真是令人驚異。 活學活用模仿造句。(1)很明顯，我們在這里是非常受歡迎的。_ that we are very welcome here.(2)你現(xiàn)在不方便見我的經(jīng)理。_ (3)對著灑了的牛奶哭泣是沒有用的。_2This made it

7、possible for life to begin to develop. 這就使得生命開始進化成為可能。it作形式賓語的句型是：主語動詞it形容詞/名詞不定式/從句或動名詞。活學活用模仿造句。（1） 這使我難以控制自己。This made _ to control myself.（2）他認為去前線是他的責任。_ （3）我們規(guī)定，課內(nèi)外都講英語。_ . 語言點1.They multiplied and filled the oceans and seas with oxygen，which encouraged the later development of early shellfish

8、 and all sorts of fish.(P26)他們繁殖起來就使得早期的海洋充滿了氧氣，這為早期的貝類及其各種魚類的發(fā)育進一步創(chuàng)造了條件。詞語歸納encourage sb.to do sth.鼓勵某人做，慫恿某人做urge sb.to do sth.鼓勵某人做，慫恿某人做urge o doing sth.鼓勵某人做，慫恿某人做即學即練（1）父親總是鼓勵我學好英語。_（2）老師鼓勵我報名參加演講比賽。_2.Before we left，Li Yanping explained to me that the force of gravity would change three

9、 times on our journey.(P30)在啟程以前，李彥平向我解釋說，在我們的航行中會有三次引力的改變。注意下列句中force的意思。（1）We forced the door open and arrested the two murderers.（強迫,強行）（2）The force of gravity is really mysterious.（力量）（3）When he was only seventeen，he joined the forces to defend his country.(軍隊)（4）As most men suffered from this s

10、trange disease，the majority of the labour forces in this village were women and children.(勞動力)詞語歸納force open強行打開 by force依靠武力force sb.to do sth.迫使做come into force（法律）實施force o doing sth.迫使做in force大批的force one，s way 強行前進或進入force sth.on sb.把強加于即學即練選用上述詞組完成下列小片段。It was reported that two peasant

11、workers(1)_(被迫)work 14 hours a day but with little money. One of them couldnt stand it and one of them(2) _ _(強行前進或進入)the boss，s house and killed him. The other(3)_（強迫）a bank clerk(4)_（hand）in the money.3.I cheered up immediately and floated weightlessly around in our spaceship.(P30)我高興起來，由于失重，我在太空船

12、艙里飄來飄去。注意下列句中cheer的意思。（1）The good news cheered the family.（使高興，歡呼,為喝彩）（2）See you tomorrow，then cheers.（口語謝謝，干杯，再見）短語歸納cheer up 高興起來，振奮起來 cheer sb. up (使）充滿歡喜、希望、鼓舞（1）咱們?nèi)ゲ賵鰹槲覀兊年爢T加油吧。 _（2）振作起來！我們的困難很快就會過去的。_. 語法填空（一）Most Americans dont like to get advice 1_members of their family. They get advice from

13、 “2_ (strangers)”. When they need advice, they dont usually go to people they know. 3_Instead_ many of them write letters to newspapers and magazines 4_that/which_ give advice on many different subjects, 5_ (including) family problems, the use of language, health, cooking, child care, clothes, and e

14、ven on how 6_ (to buy) a house or a car.Most newspapers regularly print letters from 7_ (readers) with problems. Along with the letters 8_ are answers written by people who are supposed to know how to solve such problems. Some of these writers are doctors, 9_others_ are lawyers or educators. But two

15、 of the most famous writers of advice are women without special 10_ (training) for this kind of work.（二）Liu Xiang was the first Asian 1_ (win) the mens 110m hurdles at the Olympics in Athens. 2_After_ that he became an idol(偶像) to the young people.“I never thought I would run under 13 seconds and br

16、eak the Olympic 3_record_.”said Liu Xiang in tears, “I am very very excited. Im proud not just for myself and for Chinese 4_but_ for Asia. My race went 5_ (wonderfully) from start to finish.” Liu added. “It is 6_an_ amazing experience being the Olympic champion. I want to thank my coach and my frien

17、ds for 7_all_their help. I think today we Chinese have showed the world we 8_could_ run as fast as anybody else.”Since his return from Athens, Liu Xiang 9_has been_ (be) at the center of a media circus and he has been to many press appearances and meetings. But Liu thinks 2004 is just the beginning, and he expects to be at his peak in the 2008 Beijing Olympic